#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Created by Gretchen Liu

class GameStats():
	"""跟踪游戏的统计信息"""
	def __init__(self, ai_settings):
		"""初始化统计信息"""
		self.ai_settings = ai_settings
		self.reset_stats()
		# 游戏启动时处于非活动状态
		self.game_active = False
		self.hign_score = 0

	def reset_stats(self):
		"""初始化在游戏运行期间可能变化的统计信息"""
		self.ships_left = self.ai_settings.ship_limit
		self.score = 0
		self.level = 1